Two Species That Sometimes Mate and Produce Vigorous but Sterile

question 19

Multiple Choice

Two species that sometimes mate and produce vigorous but sterile offspring are separated by

• A)gametic isolation.
• B)hybrid breakdown.
• C)reduced hybrid viability.
• D)reduced hybrid fertility.

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Definitions:

Conscious

A level of consciousness that reflects awareness of the external world and inner mental activity.

Unconscious

The part of the mind that is inaccessible to the conscious mind but that affects behavior and emotions.

Hallucinogenic

Substances that cause hallucinations - perceptions and sensations that appear real though they are not actually present in the external environment.

Sensation

The sense organs’ detection of external physical stimulus and the transmission of information about this stimulus to the brain.